Stahl-fabrik uno eisengiesserei hugo iiartung actien-gesell



(No Model.)

C. TURNOPSKY. GRATB BAR.

f atented Jan. 23, 1394.

A tarwe? UNITED STATES PATENT OEEICE. i

CARL TURNOFSKY, OF BERLIN, GERMANY, ASSIGNOR TO BERLINER GUSS- S'IAHL-FABRIK UND EISENGIESSEREI HUGO IIARTUNG AOTIEN-GESELL- SOHAFT, OF SAME PLACE.

G RAT E-BAR.

SPECIFICATION forming part of Letters Patent No. 513,373, dated January 23, 1894.

Applicationiiled May 29, 1891I Serial No. 394,559. (No model.) Patented in Germany October 29, 1890, No. 57,674 in France April 28, 1891, No. 212,984; in Sweden April 25, 1891, No. 3,204; in Switzerland April 27, 1891, No. 3,468; in England May 19, 1891.110. 8,513; in Belgium May 19, 1891, No. 94,927; in Italy June 10, 1891, No. 29,899, and in Austria-Hungary April17, 1892, No. 52,431 and No. 8,032.

4To all whom t may concern.-

Be it known that I, CARLTUENoEsKY, a subject of the King of Prussia, German Emperor, and a resident of Berlin, in the Kingdom of Prussia, German Empire, have invented some new and useful Improvements in Grate-Bars, (for which patents have been obtained in Germany, No. 57,674, dated October 29, 1890; in Great Britain, No. 8,513, dated ro May 19, 1891; in France, No. 212,984, dated April 23, 1891; in Sweden, No. 3,204, dated April 25, 1891; in Switzerland, No. 3,468, dated April 27, 1891; in Belgium, No. 94,927, dated May 19, 1891; in Austria-Hungary, No. 52,481

t5 and No. 8,032, dated April 17, 1892, and in Italy, No. 29,899, dated June 10, 1891,) of which the following is a specification.

My invention refers to grate-bars, in which the heads are formed by distinct parts, held zo movably or immovably by a special body or carrier, and my improvements in such gratebars relate to the said carrying-body as well as to the separate heads, the former being constituted by iiexible, non-combustible strips of 2 5 corrugated sheet-iron, and the latter (the heads) being held between said strips by special projections taking into holes or cavities of the strips, as will be more `fully described hereinafter.

3o In order to make my invention more clear, I refer to the accompanying drawings, in which similar lettersdenote similar parts throughout the diierent views, and in which- Figure 1 is a plan of a portion of a grate composed of the improved grate-bars. Fig. 2 is a side-view of a part of a gratebar. Fig. 3 is a vertical cross-section through a gratebar, taken through the diagonal plane of a head. Fig. 4 is also a vertical cross-section 4o through a grate-bar, taken, however, on a line between two heads, and Figs. 5 and 6 are views corresponding to those of Figs. 8 and 4, and representing a modification.

I compose each of my improved grate-bars of two flexible, non-combustible strips a a of corrugated sheet-iron, which are connected at both ends by special bearing-pieces p, Fig. 2,

consisting of cast-iron, and affording a broad and secure bearing. The said strips aahold between themselves the Shanks r2 of the heads 5o proper r, the latter extending over the upper edge of the strips, and forming the fuel bearing surface. The feet of the shanks are -formed by hemispherical parts r3, which at means of projections fr forming part of the shanks, and taking into corresponding cavities or holes provided within the strips a a. When employing holes for the reception of said projections, I prefer to give the latter a somewhat greater height, than otherwise, as has been indicated by dotted lines in Fig. 5. 7o The vertical planes of the two strips of one bar may be perfectly parallel, as in Figs. 3 and 4, or may be at an incline, as in Figs. 5 and 6, according to the configuration of the respective under part of the bearing-piecesp.

The flexible non-combustible strips of the corrugated sheet-iron may have any height without hindering the access of air, wherefore any desired stability may be attained. Moreover, they may be made and divided into 8o any length, which is very important for exportation, since any length of bar may be put together out of small pieces from the store.

YThe strips may be connected with each other as wellas with the bearing-pieces by means of rivets, as shown in the drawings, and I am enabled, by reason of my improved construction, to produce grate-bars of any required length and strength in a very short time and at a very low price.

Having now described the nature of my invention, I declare that what I desire to secure by Letters Patent of the United States is- A grate-bar, composed of two flexible, noncombustible strips a d of corrugated sheetspecification in the presence of two subscribiron, connected at bloth ends .by special bearing witnesses. Y ing-pieces p, and ho ding between themselves separate heads o", the latter being secured in CARL TURNOFSKY' 5 place by projections 1" taking into holes of Witnesses:

said strips, for the purpose as described. FR.-SPULING, In testimony whereof I have signed this W. HAUPT. 

